Function getGlobalSingleton

packages/core/src/carrier.ts:84–93

(
  name: Prop,
  creator: () => NonNullable<SentryCarrier[Prop]>,
  obj = GLOBAL_OBJ,
)

 * @returns the singleton
 */
export function getGlobalSingleton<Prop extends keyof SentryCarrier>(
  name: Prop,
  creator: () => NonNullable<SentryCarrier[Prop]>,
  obj = GLOBAL_OBJ,
): NonNullable<SentryCarrier[Prop]> {
  const __SENTRY__ = (obj.__SENTRY__ = obj.__SENTRY__ || {});
  const carrier = (__SENTRY__[SDK_VERSION] = __SENTRY__[SDK_VERSION] || {});
  // Note: We do not want to set `carrier.version` here, as this may be called before any `init` is called, e.g. for the default scopes
  return carrier[name] || (carrier[name] = creator());
}